Visual flex layout + CSS code.. Flexbox Generator is a free online tool from the ToolsRift Developer Tools collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.
Set flex-direction, justify-content, align-items, wrap and gap using dropdowns, watch the item preview rearrange live, and copy the generated flex container CSS.
justify-content aligns items along the main axis (the flex direction), while align-items aligns them on the cross axis.
Set justify-content and align-items both to center on a flex container to perfectly center a child horizontally and vertically.
It controls whether items stay on one line or wrap onto multiple lines when they exceed the container width.